On the left side of the equation is one or more response variables, Y. On the right hand side is one or more predictor variables, X, and their coefficients, B. X, the variables on the right hand side can have many forms and are called by many names.
Subscribe to our Digestive Health e-newsletter to stay up to date on digestive health topics. The exact cause of ulcerative colitis remains unknown. Previously, diet and stress were suspected, but now doctors know that these factors may aggravate but don't cause ulcerative colitis.One possible cause is an immune system malfunction.reviously, diet and stress were suspected, but now doctors know that these factors may aggravate but don't cause ulcerative colitis.
The causes of colitis include stress, infections (including Salmonella, Clostridium, and E. coli), and parasites (including, Giardia, Cryptosporidium and whipworms), trauma, allergic colitis and primary inflammatory bowel disease (lymphoplasmacytic, eosinophilic, granulomatous and histiocytic types).hatever the cause, the inflammation in the colon results in reduced water absorption and decreased ability to store feces in the colon. This causes the classic symptom of frequent small amounts of diarrhea, often with mucus or blood.